1 files changed, 11 insertions, 1 deletions

diff --git a/config/jestEsbuildTransformer.js b/config/jestEsbuildTransformer.js
index b6f2fc3..6a4760f 100644
--- a/config/jestEsbuildTransformer.js
+++ b/config/jestEsbuildTransformer.js
@@ -4,7 +4,7 @@ import { node } from './buildConstants.js';
 
 /**
  * @param {string} source
- * @param {import('@jest/types').Config.Path} filePath
+ * @param {string} filePath
  * @return {Promise<import('@jest/transform').TransformedSource>}
  */
 async function processAsync(source, filePath) {
@@ -14,6 +14,16 @@ async function processAsync(source, filePath) {
     format: 'esm',
     target: node,
     sourcemap: true,
+    define: {
+      __DEV__: JSON.stringify(false), // For mobx
+      'process.env.NODE_ENV': 'test',
+      'process.env.MODE': 'test',
+      'import.meta.env': JSON.stringify({
+        DEV: false,
+        MODE: 'test',
+        PROD: true,
+      }),
+    },
   });
   return {
     code,